| 摘要 |
PROBLEM TO BE SOLVED: To provide an operation switch which has high durability and shock resistance, rarely causes rattling, and is excellent in operation feeling.SOLUTION: An operation switch 10 has at least four back and forth, left and right side buttons 5 in a cross direction, and has: a PCB 2 which has at least four first contact points 2b; a rubber sheet 3 which is provided for an upper part of the PCB 2, has a carbon electrode E1 for conducting the first contact points 2b when in touch with the first contact points 2b on the lower surface at a position opposite at least the four first contact points 2b respectively, is deformed downward by being pressed down by side buttons 5, and brings the carbon electrode E1 into contact with the first contact points 2b; and a holder 4 provided with an opening 4a which is loosely engaged with four side buttons 5 respectively. The holder 4 is provided with a floor surface 4c which blocks pressing down of the side buttons 5 equal to a prescribed stroke or more. |
